FaSTTUBe/steering-wheel-rpi
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Set dimensions, position & alignment separately

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This commit is contained in:
Jasper Blanckenburg
2022-05-19 23:31:53 +02:00
parent 9a6ae2c6d9
commit 3934e4777f
6 changed files with 106 additions and 31 deletions
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28
include/widgets.h
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@ -6,24 +6,36 @@
#include <optional>
#include <string>
enum class Alignment { LEFT, RIGHT, CENTER };
struct PositionInfo {
int x;
int y;
Alignment align;
};
class Widget {
public:
Widget(SDL_Renderer* renderer, SDL_Rect dest_rect);
Widget(SDL_Renderer* renderer);
virtual ~Widget();
virtual void update_rect(SDL_Rect new_rect);
virtual void set_width(int width, bool preserve_aspect_ratio = true);
virtual void set_height(int height, bool preserve_aspect_ratio = true);
virtual void set_position(int x, int y);
virtual void set_alignment(Alignment align);
virtual void draw() = 0;
protected:
void recalculate_rect();
SDL_Renderer* renderer;
SDL_Rect dest_rect;
SDL_Rect rect;
PositionInfo pos;
};
class TextureWidget : public Widget {
public:
TextureWidget(SDL_Renderer* renderer, SDL_Rect dest_rect,
std::optional<SDL_Texture*> texture);
TextureWidget(SDL_Renderer* renderer, std::optional<SDL_Texture*> texture);
~TextureWidget();
virtual void draw() override;
@ -31,18 +43,18 @@ public:
void update_texture(SDL_Texture* new_texture);
private:
void update_dimensions_from_texture(SDL_Texture* texture);
std::optional<SDL_Texture*> texture;
};
class ImageWidget : public TextureWidget {
public:
ImageWidget(SDL_Renderer* renderer, SDL_Rect dest_rect,
const std::string& path);
ImageWidget(SDL_Renderer* renderer, const std::string& path);
};
class TextWidget : public TextureWidget {
public:
TextWidget(SDL_Renderer* renderer, SDL_Rect dest_rect, TTF_Font* font,
TextWidget(SDL_Renderer* renderer, TTF_Font* font,
const std::string& initial_text = "");
~TextWidget();